final: prev: {
  picom = prev.picom.overrideAttrs (oldAttrs: rec {
    version = "NEXT";
    src = prev.fetchFromGitHub {
      owner = "yshui";
      repo = "picom";
      sha256 = "CaSw80lfxopVNydn9f6lbl28agzvMkDCub8dYRv3Q30=";
      rev = "7ba87598c177092a775d5e8e4393cb68518edaac";
    };
  });
}